Freezing can



July 14, 1925.

A.*J. BENTLEY FREEZING CAN Filed Aug. 4. 1922 u.. MMIV Patented July 14, 1925.

UNITEDSTATES ANsoN '.i, BENTLEY, or Nuns, onIo.

rnnnzme CAN.

Application inea August 4, i922. seriain'ottascs. v

near the bottom to agita-te the water which f is to be frozen; this `being the commonly accepted practice in what is known as the raw water can system of ice making.

In this system it is customary to use freezing cans immersed in an appropriate freezing solution, such i as brine, which ist In order that circulated around the cans. the impurities commonly present in water available Vfor the manufacture of ice may not be frozen into the finished cakes, some means are providedV for introducing air into the can at or near the bottoni. The

action of this air current upon the "water is v such that the impurities are not frozen into the ice, but are collected in the small amount of water which remains unfrozen in a pocket in the ice cake at theterinination ofthe freezing period. i

In o-rder to introduce this air it has been customary heretofore to provide some sort of a tube o-r pipe running from `the top edge of the cany down-wardA to a point at or near the bottom and there opening into. the interior of the can. Cans of this type can be economically manufactured to provide an air conduit in the wall of the can by shaping the wall member itself to form the conduit. See, for example, my copending application Serial No. 433,163, filed December 27, 1920. In cans of this type as compared with cans having inserted tubes difficulty is involved in making an air conduit connection between an air nozzle and the top of the conduit. It is impracticable to shape the walls of the conduit to form a tight connection with the air nozzle since the galvanized surfaces of the sheet metal used in cans is not sufficiently smooth and regular and if the galvanized surface is removed to form the joint the material rusts under the eect of the water and brine with which these cans are used. l

It is an object of the present invention to provide a. constructionv of the freezing can in!l which a conduit lfor the introduction of airain accordance with the rawwater system may be formed of sheet metal and yet may economically and effectively be arranged for convenient attachment of an air hose.

The nature and objects of the invention will be better understoodfrom a. descrip tionL of an illustrative embodiment thereof, reference being had to the accompanying drawings forming a part hereof in which y Figure 1 is a perspective view `of a freezing can embodyingthe invention.

Figure 2-is a perspective view on a larger scalel of ai portion of the interior of the can indicating the manner in which the connector is applied to the can. v

1 Figure 3 is a to-p plan view of the saine. Figure 4 is a view sho-wing a portion of the blank from which the can is made indieating the provision of eXtra `metal for forming the enlarged upper end `of the `air conduit. v

Figure 5 is a sectional view taken on the line 5 5 of Figures 3 and `6.

Figure 6 is a sectional viewtaken on the line 6 6 of Figure 3. l Figure r7 is a view of theihose connector adapted to be used with the can illustrated. The general construction of the freezing can shown herein may be for example such as illustrated in my copcnding application Serial No. 433,163, filed December 27, 1920, in which an,l air conduit extending down the side of the can is provided by deforiirv ing a side member of the can at or near a vertical i seam. Y j

In the particular structure selected for the purposes of illustration the conduit 5 is formed'atla vertical seam between overy lapping wall portions 6, 7 by deforming the inner portion between the two rows of rivets .8, 9. To providethe desired connection for an airisup-ply therepis provided at the upper end of the conduit a connector 10 adapted to form a substantially air-tight connection with a hose connector. nector is substantially flush with or depressed below lthe top of the freezing can for the reason that projecting parts which could be easily damaged are seriously, objectionable lon account of the rough handling to which these cans are subjected in use. The connector may be formed in any suitable way for attachment of an appropriate hose connector. In the arrangement The conshown it is a. bushing with a flat side l1 having a bore 14 formed| to receive therein the simple tubular and preferably tapered.

hose connector 15 best shown in Figure 7.

The 'connection between the conduit and the connector may be made in any suitable way but preferably the connector f is inserted for at least a part of.' its length in the upper end of the conduit. In the illustrated. structure the full length of the'bush ing 101is inserted in the conduit and it is soldered securely therein to form an air-l tight connection.V The conduit may be made relatively small throughout the greater .portion of its length andonly the upper portion enlarged sufficiently to receive 'the'b'ushing Such a structure is illustrated inthe draw-j- As herein shown-the larger section is ino. fomed at the top of the can by providinga greatei-width of stock in the blank as indicated at 16 in Figure 4. IVhen the blank is bent to form the conduitA this additionalA stock permits forming the enlarged portion without stretching the stock and therefore,

if the can is constructed of galvanized Imetal, without destroying the galvanized surface.-

The structure shown is to' be understood as illustrative merely since variations may be made inthe structure without departing from thespirit of the invention .as set forth inthe claims.

I claim as my invention:

l. A freezing can for use in the manufacture of ice having a conduit formed by a distortion of the wall material extending downwardly along rone wall, the upper end fit an air nozzle, said' bushing lyingwithing4 the conduit throughout substantially l its whole length. j

3. A freezing can for use in themanu-` faeture of ice, one wall of which comprisesv a plurality'of thicknesses of material secured together by spaced rows of'. rivets, one thickness being formed toprovide' between itself and the neXt thickness a vertical air passage, said air passage being enlarged at its upper end anda bushing secured in the enlarged portion and having a bore to receive an air hose connector.

4. A freezing can for use in the manu-l facture of ice, comprising wall members and a bottom member, and having one of the wall members grooved inwardly where it overlaps the other wall member and unitedgthereto on-each side of the groove thereby 'formbeing enlarged'at its upper endiand having a bushing inserted thereiinthe bore of the bushing being arranged' to receive an air hose connector therein.

5. A freezing can for use' in the manufacture of ice having wall members ar` ranged to provide an air conduit, the conduit being'enlarged at its upper end,V and a tubular connectorsecuied inthe'enlarged portion and formed for the attachment of an air hose connector;` y

6. A-=freezing can for use in the manufacture of: ice having wall members 'ar-ranged toprovide an air conduit, the.rv conduit being enlarged at its upper end and a tubular vconnector secured in the enlargedl portion substantially even at'the top With the endf of theconduit and.`y having a` borevfor the at taehment. of anair hoseconnector.

.7."In an icecan, sheet metal forming the' walls ofthe can, theends of'said'sheet metal overlapping and lying in superimposed relationship', one of said overlapping ends being bent to provide a portion offset from the other end and cooperating with the other lend to form a vertical.air"passage in the walls ofthe can between said overlapping ends7 said offset portion being formed to provide an enlargementof thel passage at the top of the can and? having an opening therein initsv lower end providing communi# cation between the'air passageand the' inside of the can and a` bushing in theen-l largement having a tapered bore to receive 'an air'hose connector. M

In testimonywhereof', Ihave signed myv name to 'this' specification this 29 day of-y July, 1922.

'. ANSON J. BENTLEY.

ing an integral air conduit7 said' groove 

